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<title>Optimization groups (GNU Compiler Collection (GCC) Internals)</title>

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<h4 class="subsection" id="Optimization-groups-1"><span>9.7.2 Optimization groups<a class="copiable-link" href="#Optimization-groups-1"> &para;</a></span></h4>
<a class="index-entry-id" id="index-optimization-groups"></a>
<p>The optimization passes are grouped into several categories. Currently
defined categories in <samp class="file">dumpfile.h</samp> are
</p>
<dl class="ftable">
<dt><a id="index-OPTGROUP_005fIPA"></a><span><code class="code">OPTGROUP_IPA</code><a class="copiable-link" href="#index-OPTGROUP_005fIPA"> &para;</a></span></dt>
<dd><p>IPA optimization passes. Enabled by <samp class="option">-ipa</samp>
</p>
</dd>
<dt><a id="index-OPTGROUP_005fLOOP"></a><span><code class="code">OPTGROUP_LOOP</code><a class="copiable-link" href="#index-OPTGROUP_005fLOOP"> &para;</a></span></dt>
<dd><p>Loop optimization passes. Enabled by <samp class="option">-loop</samp>.
</p>
</dd>
<dt><a id="index-OPTGROUP_005fINLINE"></a><span><code class="code">OPTGROUP_INLINE</code><a class="copiable-link" href="#index-OPTGROUP_005fINLINE"> &para;</a></span></dt>
<dd><p>Inlining passes. Enabled by <samp class="option">-inline</samp>.
</p>
</dd>
<dt><a id="index-OPTGROUP_005fOMP"></a><span><code class="code">OPTGROUP_OMP</code><a class="copiable-link" href="#index-OPTGROUP_005fOMP"> &para;</a></span></dt>
<dd><p>OMP (Offloading and Multi Processing) passes. Enabled by
<samp class="option">-omp</samp>.
</p>
</dd>
<dt><a id="index-OPTGROUP_005fVEC"></a><span><code class="code">OPTGROUP_VEC</code><a class="copiable-link" href="#index-OPTGROUP_005fVEC"> &para;</a></span></dt>
<dd><p>Vectorization passes. Enabled by <samp class="option">-vec</samp>.
</p>
</dd>
<dt><a id="index-OPTGROUP_005fOTHER"></a><span><code class="code">OPTGROUP_OTHER</code><a class="copiable-link" href="#index-OPTGROUP_005fOTHER"> &para;</a></span></dt>
<dd><p>All other optimization passes which do not fall into one of the above.
</p>
</dd>
<dt><a id="index-OPTGROUP_005fALL"></a><span><code class="code">OPTGROUP_ALL</code><a class="copiable-link" href="#index-OPTGROUP_005fALL"> &para;</a></span></dt>
<dd><p>All optimization passes. Enabled by <samp class="option">-optall</samp>.
</p>
</dd>
</dl>

<p>By using groups a user could selectively enable optimization
information only for a group of passes. By default, the optimization
information for all the passes is dumped.
</p>
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